Japanese i-adjective
akai — red 赤い
Explore the principal positive, negative, past, non-past and conditional forms of this Japanese adjective.
How i-adjectives conjugate
The final い changes to create negative, past and connecting forms. The adjective itself carries this grammatical information, so a separate verb is not required in the plain forms.
Conjugation table
The English glosses are approximate; the natural translation depends on the surrounding sentence.
| Form | Style | Positive | Negative |
|---|---|---|---|
| Present (non-past) | Plain | is red akai 赤い | is not red akakunai 赤くない |
| Polite | akai desu 赤いです | akakunai desu 赤くないです | |
| Past | Plain | was red akakatta 赤かった | was not red akakunakatta 赤くなかった |
| Polite | akakatta desu 赤かったです | akakunakatta desu 赤くなかったです | |
| Presumptive | Plain | will probably be red akai darō 赤いだろう | akakunai darō 赤くないだろう |
| Polite | akai deshō 赤いでしょう | akakunai deshō 赤くないでしょう | |
| Conditional | Standard | if it is red akakereba 赤ければ | if it is not red akakunakereba 赤くなければ |
| Connecting form | Standard | akakute 赤くて | akakunakute 赤くなくて |
These conjugations are generated automatically and are intended as a learning guide. Check the natural usage in context when accuracy is important.